Cotton is a natural polymer, primarily composed of cellulose. Cellulose is an organic compound that consists of a long chain of linked sugar molecules. It is produced by plants, and in the case of cotton, it is harvested from the cotton plant's seed hairs. Unlike synthetic polymers, which are made through chemical synthesis and often derived from petroleum products, cotton is grown and processed through agricultural methods. Natural polymers like cotton have been used for thousands of years for their properties, including breathability, absorbency, and biodegradability, making them a preferred choice for a wide range of applications from clothing to medical supplies.

Polyvinyl chloride (PVC) is a widely used plastic in construction and manufacturing. In New York City, there are no specific bans on PVC usage in general. However, the city has stringent environmental and health regulations that might indirectly limit its use. For example, PVC can release harmful chemicals when burned, posing risks to air quality and human health. Consequently, certain building codes or waste management policies may restrict its application or disposal. Additionally, the city encourages eco-friendly practices, promoting alternatives to materials like PVC that have significant environmental impacts. While not officially banned, users should consider these factors and explore sustainable options.

Polyethylene (PE) pellets are widely used in manufacturing various products, including packaging materials, containers, and toys. They are generally considered non-toxic and safe for use in consumer products. PE does not leach chemicals into foods or drinks and is resistant to bacteria, making it a common choice for food packaging. However, like any plastic, if PE pellets are ingested, they can pose a physical risk, potentially causing intestinal blockage or discomfort. Additionally, when PE is burned, it can release toxic substances, thus proper disposal and recycling are essential. Environmental concerns also arise with PE pellets, as they can contribute to plastic pollution, affecting marine life and ecosystems if not properly managed.